Pump



I Dec. l1, 1928.

Z. P. ADAMS PUMP 2 Sheets-Sheet l Filed Feb. l'7 1927 Patented Dee. 1l,

sin Nis; ri* oyFFic-E. snes nenne, W nenn, fleeing.l etienne; epico.;

Application ieanebmaxy' lee?. semaine. ies-)962. y

This invention i'eistes Lto piston pninpsj end psitionlsily to e type useful as lifiloiie pziitieu A nstni'eot an iinpiovenient nponI the type ot pump disolm d andeisiined in U.

No. li issued August An object ot the invention is to p units in their bores oi' pockets siii yhe eiieetively pifevented l1n zt simple :ind practical I a p ,1

manner; with which edgustinent een be insee improved punip oit this type, withk 5v eh endwise move/nient of the vslvecno'es or nivo to prevent inov'einent otthe valve enges of` nnitsin `at hote; with Whiehthe valve enges-1 of an embodiment of the invention, and the novel eatuies will helpaltioulai'ly pointed out heijeina'fteiin eonneetion with the eppended claims. f y y y ln the accompanying diiawlngfyz- Fig; l. is s sideelevetion oit a punip eonstinoted in soeoi'denfee with this invention;

`Fig. 9 issn elevetion offs part et' the seine,

v4with one of the oeps oi elosiiesienioved in l l y p p extend between `and through the'` rings land oideito showv the inteiioi1 of the pun'ip;

Figf isis sectional plan oit vthe seine., With the seetion taken approximatelysiong the linefo't 2; Fig. i is s partiel saine, with the seotion teken sppiionnnsteiy along the ang ier line rfet-L of 2; and Eig. 5 is at siniilei elevation with one oit the valve units ienioved iioin its pocket.; and one oi" the end oeps ot the pump detached.

. ln the iliustiiited embodiment ot the invention, s pump Casing l is piovided with ita-1 eesses 2 in its opposite ends, and these/re- `eessed ends zn'econneeted by e plureiityof r in Fig. e.

hoies 3, i and 5 which extend peizillel to` one another entiiely 4ifoni nend to end of the ees? ing. @ne of theseleoi'es7 suoli es 3, may be n lsigeii then the othersa end Iseiv'es es e piston cylinder in which e piston 5^, shown hy dash lines in Fig. 3, nifty ieeipoosted es lietetotoie, the piston being operated hy n stein i passing through it peeking glsnd socket 8 provided in one of thel end walls oi1 covers 9 of the casing; ri`he other end ot the easing is elosed hy :i cover oi cap l0. Suitable gasket isili; pump. y, this invention. is in the` seetionel elevation lof 'the rings il niejf v disposedlbetiveen the oovei's Send l0 andthe end walls the easing,, so to eiiieetively ses-i the joints betweenthe eofeis andthe reeen C.) The'covei's, hoWever,A torni `with the recessed endslof the eesing,v eheinhei's Vwhich are `inieoinninnieetion with4 *i sill oit' the hores 35 .1i and L5 :it theendsoiu' the casing.v y .2

K rEhe @over 9 nisybe Centered to the .casing by one or nioie studs 1Q which extendifioin the Cover along the sides oil the e ng `and siide through apertures 13 in eersl `of the easing. Abeille may be piveted at its ends, by pins 16 to opposite side'edges of the @overl S), and entends endwise along the easing and sei'oss the other @overv 10,]es shownin Figs. l and. ,i'i'i'od or` seiewl indy helthieaded through theei'oss aun of the'hiil and beau' at` its inneiiend egsinst the oovei' 10, es shown in PFig. so es to draw the txvoeoveifsftoivzud one enothei leind fn'inljf elziinp' thein to opposite ends of the Casing. 'lheMcmte` end 'of ACil theorodl?. may hehent engulaily as et 18, Y.

so to pi'ovide sn operating handle to fn'oili'- teteiotetion of the'seiew.

A velve unfit designated genezfalljfv et 19` is ielnovsbly disposed in es oh rbvalve pocket es shown'in Figs. 2, Ltend 6. kEsehvalve unit niey inelnde esige oi'inedloy annular rings 2O spaced epei't,hyshouldered studs 21 which sie riveted oveil st the outei1 piojecting ends,

as to Confine the iingsliiiniy againstr the f iiveted against theiiuieif'A faces foiI the iings.

Vf' We plates or nien'iheis niiy'hi-i disposed e sgeinstfthe inneil end iineesoithe rings ioi onetype ol"'ei've,rpzif; shown for the valve* unit inthe poe t in'iig. d, oi* against the outeijend ',taeeso'l the loi? ep'vslve acting in e reverse nisnnei', as shown in the pocket 'lhe valve plates or n'ieinloer 23 in the pocket` 5 nie pressedy against the end feces` of the rings h v compression spiing 9A, the ends of the spring being received ovef'stnds 25 on the plates oir 'viilve nieinbeis so is to be held against Idispleeenient therefrom; The valve plates Q3 in pocket 5- will loe guided toward and 'from the rings by the studs 2l and will be yieldingly piessed into closed positions against the rings hy the spring 24,.

j studs 26 projecting from the faces thereof opposite the studs 25, and a helical tension spring 27 may be hooked at its ends to the studs 26, and extend between the rings, so as to urge the plates yieldingly toward one another and against the outer faces of the ring. The plates 23 which lit against the outer end faces of the rings are guided to ward and from those end faces by the second set of studs 227 so that the valve plates cannot become laterally displaced in such a manner that they will not properly seat against the end faces of the rings. Thus the valve cages formed by the rings 20 and studs 21 and 22 may be made identical in construction, and the valve plates or n'ieinbers 23 disposed against either the inner or outer end faces of the rings 'in accordance with ywhether a valve acting in one direction or the other is desired.

Suitable clearance is provided between ends of the studs 22 and the covers 9 and l0, to permit movements of the cover toward the casing ends due to the compression ofthe gaskets 1l as the covers are drawn against the ends of the casing, and a pair ofanlchorage studs 2 8 are secured inor threaded into the ends of the easing at points between the pockets l 'and 5; The outer ends of these studs are'threaded for the reception of nuts 29 whichl are sufficiently wide to overlap the l pockets 4: and 5 and engage with the 'valve cages and confine them within the pockets. Either valve cage may be removed from the casing through either end thereof by merely first removing the nut 29 at that end of the casing, and both valve cages may be securely clamped in the pockets and also against all movement endwise in such pockets by merely tightening the nuts 29. Thus the valve cages are confined in their pockets entirely independently of the covers 9 and lO of t-he casing, all danger of leakage due to endwise movement or reciprocation of the valve cages in their pockets is avoided, danger of injury to the stud or covers due to impacts is avoided, and all noise eliminated at all speeds of operation of the pump.

The casing is provided with the usual inlet and outlet connections 30, having passages 30 leading separately to the pockets 4t and 5 at points intermediate their ends, as in the prior patent- 'referred to. The operation is the same as in the prior patent referred to,

except that the valve cages may be removed or interchanged at will merely by first removing the nuts 29.

lt will be obvious that various changes in the details which have been herein described and illust-rated in order to explain the nature of the invent-ion may be made by those skilled in the art within the principle and scopev of the invention as expressed in the appended claims.

I claim:

l. In a pump or the like, a casing having a plurality of bores from end to end, one of .said bores forming la pump cylinder and another bore a valve pocket, a cover closing each end of the casing and permitting communication between corresponding ends of said bores, said casing having a passage leading to said valve pocket intermediate of its ends, a valve unit disposed in said valve pocket, and means carried by the ends of said casing, engaging with said unit, and confining it within said valve pocket independently of said covers to permit removal of either cover without releasing said unit.

2. In a pump or the like, a casing having a plurality of bores from end to end, one of said bores forming a pump cylinder and another bore a valve pocket7 a cover clos'- ing each end of the casing and permitting communication between corresponding ends of said bores, said casing having a passage leading to said valve pocket intermediate of its ends, a valve unit disposed in said valve pocket., a stud carried by each end of said casing beneath and separate from said covers,-

and means carried by and adjustable along each of said studs and overlying said valve pocket to conline said unit releasahly within its pocket, independently ofthe covers.

3. In a pump or the like, a casing having a plurality of bores extending in a direction endwise therethrough, one bore forming a pump cylinder, two others forming separate valve pockets, a cover for one end of the casing and forming with that enda chamber in communication with 'said pockets and cylinder, valve units mounted in said pockets and removable therefrom through said one end of the casing, and common means carried by said casing to somewhat overlie both of said bores and adjustable into contact with said valve units to tightly confine them within said pockets independently of the cover, and yoperable torelease said units for removal from the pockets.

ZENAS r. ADAMS. 

